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Finding the Fourth Proportional to 8,221.25, 12,333.71 and 2,377.42

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Solution

The fourth proportional to 8,221.25, 12,333.71 and 2,377.42 is: 3,566.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221.25 : 12,333.71 = 2,377.42 : x
  2. Step 2: Convert to fraction form
    8,221.25/12,333.71 = 2,377.42/x
  3. Step 3: Cross multiply
    8,221.25x = 12,333.71 × 2,377.42
  4. Step 4: Simplify right side
    8,221.25x = 29,322,366.11
  5. Step 5: Solve for x
    x = 29,322,366.11/8,221.25
  6. Step 6: Final answer
    x = 3,566.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.